Skeptical? We tested hundreds of "flattering on everyone" shades on four women with very different skin tones. Here are the winners -- and the pictures to prove it

The expert says: "This color is very pretty on Mandy. Mandy's lucky because she has yellow and pink undertones in her skin, so warm and cool lipsticks will work on her. This lipstick is a great balance of the two," says Nemes.

Mandy says: "This is such a versatile color. I think it really works with my fair skin tone."